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The Tektronix 7B50 is a timebase plug-in for [[7000-series scopes]], | {{Plugin Sidebar | ||
particularly the 7500 series. | |manufacturer=Tektronix | ||
It is specified for triggering up to | |type=7B50 | ||
Triggering uses [[tunnel diodes]]. | |summary=100 MHz Timebase | ||
The sweep is fully discrete, no ICs. | |image=7b50-front.jpg | ||
|caption=7B50 front | |||
|introduced=1969 | |||
|discontinued=1975 | |||
|series=7000-series scopes | |||
|designers=Murlan Kaufman | |||
|manuals= | |||
* [[Media:070-0975-00.pdf|Tektronix 7B50 Manual]] (OCR) | |||
}} | |||
The '''Tektronix 7B50''' is a timebase plug-in for [[7000-series scopes]], particularly the 7500 series, [[introduced in 1969]]. | |||
It is specified for triggering up to 100 MHz. Triggering uses [[tunnel diodes]]. | |||
The sweep is fully discrete, no ICs. It was replaced by the [[7B50A]] in 1976. | |||
The task of designing the 7B50 was inherited and completed by [[Murlan Kaufman]]. | |||
{{BeginSpecs}} | |||
{{Spec | Sweep | 5 s/Div to 50 ns/Div in 1−2−5 sequence, ×10 magnifier down to 5 ns/Div, variable down to 12.5 s/Div}} | |||
{{Spec | Excluded portions of sweep | None in 7700-series, first 50 ns with magnifier }} | |||
{{Spec | Trigger sensitivity | 0.3 Div (int) or 150 mV (ext) up to 10 MHz, 1.5 Div or 750 mV from 10 MHz to 100 MHz }} | |||
{{Spec | Trigger coupling | DC, AC (>16 Hz), AC HF REJ (16 Hz to 100 kHz), AC LF REJ (>75 kHz) }} | |||
{{Spec | Trigger input | 1 MΩ // 20 pF max. 500 V DC+peak AC }} | |||
{{Spec | Jitter | less than 1 ns at 75 MHz }} | |||
{{Spec | Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep}} | |||
{{Spec | External horizontal amplifier | 90 mV/Div or 900 mV/Div ranges, 10:1 variable}} | |||
{{EndSpecs}} | |||
==X-Y operation== | |||
The 7B50 has a dedicated switch to put it in "amplifier mode" for X-Y operation. | |||
In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. | |||
In amplifier mode, gain can be varied using an uncalibrated potentiometer. | |||
==Links== | |||
{{Documents|Link=7B50}} | |||
==Pictures== | |||
<gallery> | |||
Tek 7b50.jpg|7B50 | |||
Tek 7b50 front close.jpg|7B50 | |||
Tek 7b50 34 close.jpg|7B50 | |||
</gallery> | |||
[[Category:7000 series horizontal plugins]] | [[Category:7000 series horizontal plugins]] | ||